A uniform magnetic field exists in a circular region of radius r. The – InterviewSolution

1.	A uniform magnetic field exists in a circular region of radius r. The magnetic field B points in-ward as shown in the figure. The time during which electron moves in the region is given by, Nmtan−1(eBrvm)eB, then the value N will be_________ (see the figure)
Answer» A uniform magnetic field exists in a circular region of radius $r$ . The magnetic field $B$ points in-ward as shown in the figure. The time during which electron moves in the region is given by, $\frac{N m {tan}^{- 1} (\frac{e B r}{v m})}{e B}$ , then the value $N$ will be_________ (see the figure)

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